/* ROOT VARIABLES */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #ffffff;
    --accent: #facc15;
    --accent-hover: #eab308;
    --neutral: #f1f5f9;
    --text-main: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;

    --font-family: 'Poppins', sans-serif;
    --transition: all 0.3s ease-in-out;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 24px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-soft: 0 20px 40px rgba(0,0,0,0.08);
}

/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-main);
    background-color: var(--secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-main);
}

h1 span, h2 span {
    color: var(--primary);
}

p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* UTILITIES */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 5rem 0;
}

.bg-neutral {
    background-color: var(--neutral);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subsection-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--secondary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-accent {
    background-color: var(--accent);
    color: var(--text-main);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* HEADER & NAVBAR */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: var(--transition);
    padding: 1.5rem 0;
}

.header.scrolled {
    background-color: var(--secondary);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.header.scrolled .logo-text {
    color: var(--text-main);
}

.header.scrolled .nav-link {
    color: var(--text-main);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

.logo i {
    color: var(--accent);
    font-size: 1.8rem;
}

.header.scrolled .logo i {
    color: var(--primary);
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--secondary);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.header.scrolled .nav-link::after {
    background-color: var(--primary);
}

.header.scrolled .nav-link:hover {
    color: var(--primary);
}

/* HAMBURGER */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--secondary);
    transition: var(--transition);
}

.header.scrolled .hamburger .bar {
    background-color: var(--text-main);
}

/* HERO SECTION */
.hero {
    min-height: 100vh;
    min-height: 100svh;
    background-image: url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?q=80&w=2000');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    padding: 6rem 0 2rem;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.4));
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
}

.hero-subtitle {
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    font-size: clamp(0.85rem, 3vw, 1rem);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--secondary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--accent);
}

@media (min-width: 769px) {
    .mobile-break {
        display: none;
    }
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* TENTANG SEKOLAH */
.tentang-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.visi-misi-card {
    background: var(--neutral);
    padding: 2rem;
    border-radius: var(--radius);
    margin-top: 2rem;
    border-left: 4px solid var(--primary);
}

.visi-misi-card .visi, .visi-misi-card .misi {
    margin-bottom: 1.5rem;
}

.visi-misi-card h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.visi-misi-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.visi-misi-card ul li i {
    color: var(--primary);
    margin-top: 5px;
}

.tentang-img-wrapper {
    position: relative;
}

.tentang-img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--primary);
    color: var(--secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
}

.experience-badge .number {
    font-size: 2.5rem;
    font-weight: 700;
}

.experience-badge .text {
    line-height: 1.2;
    font-weight: 500;
}

/* PROGRAM GRID */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    background: var(--secondary);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
    border-color: var(--primary);
}

.program-card {
    text-align: center;
}

.card-icon {
    width: 70px;
    height: 70px;
    background: var(--neutral);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.program-card:hover .card-icon {
    background: var(--primary);
    color: var(--secondary);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.ekskul-card {
    text-align: center;
    padding: 1.5rem;
}

.ekskul-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* FASILITAS */
.fasilitas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
    gap: 1.5rem;
}

.fasilitas-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.fasilitas-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.fasilitas-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem 1.5rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--secondary);
    transition: var(--transition);
}

.fasilitas-item:hover img {
    transform: scale(1.1);
}

.fasilitas-overlay h3 {
    color: var(--secondary);
    margin-bottom: 0.2rem;
}

.fasilitas-overlay p {
    color: rgba(255,255,255,0.8);
    margin: 0;
    font-size: 0.9rem;
}

/* GALERI */
.galeri-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.galeri-item {
    border-radius: var(--radius);
    overflow: hidden;
    height: 250px;
    box-shadow: var(--shadow);
}

.galeri-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.galeri-item:hover img {
    transform: scale(1.1);
}

/* PRESTASI TIMELINE */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 2px;
    background: var(--primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 1.5rem;
    width: 16px;
    height: 16px;
    background: var(--secondary);
    border: 4px solid var(--primary);
    border-radius: 50%;
    transform: translateX(-50%);
}

.timeline-content {
    padding: 1.5rem;
}

.timeline-date {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--neutral);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* TESTIMONI */
.testimoni-slider-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    padding: 1rem 0;
}

.testimoni-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimoni-slide {
    min-width: 100%;
    padding: 2.5rem;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.quote-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.testimoni-slide p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-main);
    flex-grow: 1;
}

.testimoni-slide .author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.testimoni-slide .author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: var(--secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: var(--primary-dark);
}

/* CTA BANNER */
.cta-banner {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    color: var(--secondary);
    box-shadow: var(--shadow-soft);
}

.cta-banner h2 {
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

/* KONTAK */
.kontak-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.info-card {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background: var(--secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.info-card i {
    font-size: 1.8rem;
    color: var(--primary);
}

.map-container {
    height: 300px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.map-container iframe {
    width: 100%;
    height: 100%;
}

.kontak-form {
    background: var(--secondary);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    transition: var(--transition);
    background: var(--neutral);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--secondary);
}

.error-msg {
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: block;
    opacity: 0;
    transition: var(--transition);
    height: 0;
    overflow: hidden;
}

.error-msg.show {
    opacity: 1;
    height: auto;
    margin-top: 0.5rem;
}

.form-group input.invalid, .form-group textarea.invalid {
    border-color: #ef4444;
}

/* FOOTER */
.footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    color: var(--secondary);
    margin-bottom: 1rem;
    display: inline-flex;
}

.footer-brand p {
    color: #94a3b8;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links h3 {
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: #94a3b8;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    margin: 0;
    color: #94a3b8;
}

/* ANIMATIONS (FADE-IN ON SCROLL) */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* NEWS SECTION */
.news-grid {
    gap: 2rem;
}

.news-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.news-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-img img {
    transform: scale(1.1);
}

.news-date {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: var(--primary);
    color: var(--secondary);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.news-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
    transition: var(--transition);
}

.news-card:hover h3 {
    color: var(--primary);
}

.news-content p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    flex-grow: 1;
}

.btn-text {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn-text:hover {
    gap: 0.8rem;
    color: var(--primary-dark);
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .fasilitas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .fasilitas-item:nth-child(5) {
        grid-column: span 2;
    }
}

@media (max-width: 900px) {
    .hero h1 {
        font-size: clamp(2.2rem, 5vw, 3rem);
    }
    .tentang-wrapper, .kontak-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
        z-index: 1001;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
        background-color: var(--text-main);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
        background-color: var(--text-main);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 0;
        gap: 0;
        flex-direction: column;
        background-color: var(--secondary);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 2rem;
    }

    .nav-link {
        color: var(--text-main);
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .fasilitas-grid {
        grid-template-columns: 1fr;
    }
    .fasilitas-item:nth-child(5) {
        grid-column: span 1;
    }
    .galeri-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }
    .hero-subtitle {
        font-size: 0.8rem;
        letter-spacing: 1px;
    }
    .grid-3, .grid-4, .galeri-grid {
        grid-template-columns: 1fr;
    }
    .experience-badge {
        bottom: -10px;
        left: 10px;
        padding: 1rem;
    }
    .experience-badge .number {
        font-size: 2rem;
    }
}

/* STATISTIK SECTION */
.statistik-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    background: var(--secondary);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-weight: 500;
    color: var(--text-light);
}

@media (max-width: 900px) {
    .statistik-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .statistik-grid {
        grid-template-columns: 1fr;
    }
}

/* BACK TO TOP BUTTON */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 99;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
    color: #fff;
}